Title: Early Pennsylvanian paleotopography and depositional environments, Rock Island County, Illinois /
Abstract: The Geological Society of America,North-Central Section, presented this one-day field trip to Rock Island County, Illinois, where the visitor had the opportunity to examine the pre-Pennsylvanian unconformity, overlying sediments, and an early Pennsylvanian upland compression flora. The guidebook itself is a reprint of Leary (1979). Some revisions were made to update the guidebook with new exposures, new data, and new references. The geology of the field-trip area was discussed by Leary (1981). Phillips and Peppers (1984) summarized regional paleoenvironmental patterns of coal swamps and discussed the effect of climate on coal occurrence in Euramerican coal fields.